A ALIMENTARY TRACT AND METABOLISM

 B BLOOD AND BLOOD FORMING ORGANS

 C CARDIOVASCULAR SYSTEM

 D DERMATOLOGICALS

 G GENITO URINARY SYSTEM AND SEX HORMONES

 H SYSTEMIC HORMONAL PREPARATIONS, EXCL. SEX HORMONES AND INSULINS

 J ANTIINFECTIVES FOR SYSTEMIC USE

 L ANTINEOPLASTIC AND IMMUNOMODULATING AGENTS

 M MUSCULO-SKELETAL SYSTEM

   M01 ANTIINFLAMMATORY AND ANTIRHEUMATIC PRODUCTS

   M02 TOPICAL PRODUCTS FOR JOINT AND MUSCULAR PAIN

   M03 MUSCLE RELAXANTS

     M03A MUSCLE RELAXANTS, PERIPHERALLY ACTING AGENTS

     M03B MUSCLE RELAXANTS, CENTRALLY ACTING AGENTS

       M03BA Carbamic acid esters

       M03BB Oxazol, thiazine, and triazine derivatives

         M03BB02 Chlormezanone

         M03BB03 Chlorzoxazone

         M03BB52 Chlormezanone, combinations excl. psycholeptics

         M03BB53 Chlorzoxazone, combinations excl. psycholeptics

         M03BB72 Chlormezanone, combinations with psycholeptics

         M03BB73 Chlorzoxazone, combinations with psycholeptics

       M03BC Ethers, chemically close to antihistamines

       M03BX Other centrally acting agents

     M03C MUSCLE RELAXANTS, DIRECTLY ACTING AGENTS

   M04 ANTIGOUT PREPARATIONS

   M05 DRUGS FOR TREATMENT OF BONE DISEASES

   M09 OTHER DRUGS FOR DISORDERS OF THE MUSCULO-SKELETAL SYSTEM

 N NERVOUS SYSTEM

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS